Spin chains with boundary inhomogeneities
arXiv:2105.04982 · doi:10.1007/JHEP08(2021)053
Abstract
We investigate the effect of introducing a boundary inhomogeneity in the transfer matrix of an integrable open quantum spin chain. We find that it is possible to construct a local Hamiltonian, and to have quantum group symmetry. The boundary inhomogeneity has a profound effect on the Bethe ansatz solution.
15 pages; v2: minor changes, version accepted in JHEP